package com.atguigu.cloud.controller;

import com.atguigu.cloud.apis.PayFeignApi;
import io.github.resilience4j.bulkhead.annotation.Bulkhead;
import io.github.resilience4j.circuitbreaker.annotation.CircuitBreaker;
import io.github.resilience4j.ratelimiter.annotation.RateLimiter;
import jakarta.annotation.Resource;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

import java.util.concurrent.CompletableFuture;
import java.util.concurrent.TimeUnit;

/**
 * ClassName:    OrderCircuitController
 * Package:  com.atguigu.cloud.controller
 * Description:
 *
 * @Author: interface
 * @Create: 2025/7/18 - 下午11:20
 * @Version: v1.0
 */
@RestController
public class OrderCircuitController {

    @Resource
    private PayFeignApi payFeignApi;

    @GetMapping(value = "/feign/pay/circuit/{id}")
    @CircuitBreaker(name = "cloud-payment-service", fallbackMethod = "myCircuitFallback")
    public String myCircuitBreaker(@PathVariable("id") Integer id) {
        return payFeignApi.myCircuit(id);
    }
    //myCircuitFallback就是服务降级后的兜底处理方法
    public String myCircuitFallback(Integer id,Throwable t) {
        // 这里是容错处理逻辑，返回备用结果
        return "myCircuitFallback，系统繁忙，请稍后再试-----/(ㄒoㄒ)/~~";
    }

    /**
     *(船的)舱壁,隔离
     * @param id SemaphoreBulkhead
     * @return
     */
    /*
    @GetMapping(value = "/feign/pay/bulkhead/{id}")
    @Bulkhead(name = "cloud-payment-service",fallbackMethod = "myBulkheadFallback",type = Bulkhead.Type.SEMAPHORE)
    public String myBulkhead(@PathVariable("id") Integer id) {
        return payFeignApi.myBulkhead(id);
    }

    public String myBulkheadFallback(Throwable t) {
        return "myBulkheadFallback，隔板超出最大数量限制，系统繁忙，请稍后再试-----/(ㄒoㄒ)/~~";
    }
    */




    /**
     *(船的)舱壁,隔离
     * @param id FixedThreadPoolBulkhead
     * @return
     */
    @GetMapping(value = "/feign/pay/bulkhead/{id}")
    @Bulkhead(name = "cloud-payment-service",fallbackMethod = "myBulkheadThreadPoolFallback",type = Bulkhead.Type.THREADPOOL)
    public CompletableFuture<String> myBulkheadThreadPool(@PathVariable("id") Integer id) {
        System.out.println(Thread.currentThread().getName()+"开始进入 ~~~~~~~~~~");
        try {
            TimeUnit.SECONDS.sleep(3);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println(Thread.currentThread().getName()+"\t"+"exist the method!!!");
        return CompletableFuture.supplyAsync(()->payFeignApi.myBulkhead(id));
    }

    public CompletableFuture<String> myBulkheadThreadPoolFallback(Integer id,Throwable t) {
        return CompletableFuture.supplyAsync(()->"myBulkheadThreadPoolFallback，隔板超出最大数量限制，系统繁忙，请稍后再试-----/(ㄒoㄒ)/~~");
    }

    @GetMapping(value = "/feign/pay/ratelimit/{id}")
    @RateLimiter(name = "cloud-payment-service",fallbackMethod = "myRatelimitFallback")
    public String myBulkhead(@PathVariable("id") Integer id){
        return payFeignApi.myRatelimit(id);
    }
    public String myRatelimitFallback(Integer id,Throwable t){
        return "你被限流了，禁止访问/(ㄒoㄒ)/~~";
    }
}
